RE: Black Diamond Express VS Pursuit LT
The Black Diamond Express? Do you by chance mean the Thompson Center Black Diamond XR or is it the standard Black Diamond with the 22" barrel? I have not heard of a Black Diamond Express. As for the Pursuit LT, they are I am sure a good rifle. I would rather have a Pursuit Pro but the LT would probably do all right.
If you're looking for a break open design and want to save money at the same time, you want American Steel Barrels, and American break open actiontechnology, then look at a NEF Sidekick. I think they sell for around $159.00 at Cabela's on line. They are break open. The parent company is H&R which has been making break open rifles for many years. Also their out of the box accuracy is exceptional from all reports. Their one draw back is their ramrod. So purchase a range rod and keep the one with the rifle for hunting only. Other then that they are said to be excellent shooting rifles.
That would be the direction I would go if I wanted a quality rifle and did not want to invest a lot of money into the sport.